Hello,
The answer is that some universities allow it and some don't.
Suppose you're doing a 5 year integrated B.Tech course, now some Universities will allow you to take your B.Tech degree after completing 3 years and in some universities you'll have to complete the entire 5 year course in order to obtain the certificate.
So this completely depends on your university. You should contact your college authorities for a complete info about this.
Hope this helps.
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